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30151342 = 21343149181
BaseRepresentation
bin111001100000…
…1001010101110
32002201211212101
41303001022232
530204320332
62554125314
7514165534
oct163011256
962654771
1030151342
1116024171
12a12083a
136328b40
14400c154
1529a8ae7
hex1cc12ae

30151342 has 32 divisors (see below), whose sum is σ = 50450400. Its totient is φ = 13426560.

The previous prime is 30151291. The next prime is 30151343. The reversal of 30151342 is 24315103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30151343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166492 + ... + 166672.

It is an arithmetic number, because the mean of its divisors is an integer number (1576575).

Almost surely, 230151342 is an apocalyptic number.

30151342 is a deficient number, since it is larger than the sum of its proper divisors (20299058).

30151342 is a wasteful number, since it uses less digits than its factorization.

30151342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30151342 is about 5491.0237661114. The cubic root of 30151342 is about 311.2448797295.

Adding to 30151342 its reverse (24315103), we get a palindrome (54466445).

The spelling of 30151342 in words is "thirty million, one hundred fifty-one thousand, three hundred forty-two".

Divisors: 1 2 13 26 43 86 149 181 298 362 559 1118 1937 2353 3874 4706 6407 7783 12814 15566 26969 53938 83291 101179 166582 202358 350597 701194 1159667 2319334 15075671 30151342